From b689ccf6c9eecb9811f60ac69a24cadacf84da44 Mon Sep 17 00:00:00 2001 From: Johannes Sixt Date: Mon, 17 Nov 2008 09:21:30 +0100 Subject: [PATCH] t5300, t5302, t5303: Do not use /dev/zero We do not have /dev/zero on Windows. This replaces it by data generated with printf, perl, or echo. Most of the cases do not depend on that the data is a stream of zero bytes, so we use something printable; nor is an unlimited stream of data needed, so we produce only as many bytes as the test cases need. Signed-off-by: Johannes Sixt --- t/t5300-pack-object.sh | 17 ++++++++--------- t/t5302-pack-index.sh | 2 +- t/t5303-pack-corruption-resilience.sh | 12 +++++++----- 3 files changed, 16 insertions(+), 15 deletions(-) diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh index ccfc64c6e..e2aa254ea 100755 --- a/t/t5300-pack-object.sh +++ b/t/t5300-pack-object.sh @@ -13,11 +13,10 @@ TRASH=`pwd` test_expect_success \ 'setup' \ 'rm -f .git/index* - for i in a b c - do - dd if=/dev/zero bs=4k count=1 | perl -pe "y/\\000/$i/" >$i && - git update-index --add $i || return 1 - done && + perl -e "print \"a\" x 4096;" > a && + perl -e "print \"b\" x 4096;" > b && + perl -e "print \"c\" x 4096;" > c && + git update-index --add a b c && cat c >d && echo foo >>d && git update-index --add d && tree=`git write-tree` && commit=`git commit-tree $tree test-3.pack && - dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 && + echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=2 && if git verify-pack test-3.idx then false else :; @@ -230,7 +229,7 @@ test_expect_success \ test_expect_success \ 'verify-pack catches a corrupted pack version' \ 'cat test-1-${packname_1}.pack >test-3.pack && - dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 && + echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=7 && if git verify-pack test-3.idx then false else :; @@ -239,7 +238,7 @@ test_expect_success \ test_expect_success \ 'verify-pack catches a corrupted type/size of the 1st packed object data' \ 'cat test-1-${packname_1}.pack >test-3.pack && - dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=12 && + echo | dd of=test-3.pack count=1 bs=1 conv=notrunc seek=12 && if git verify-pack test-3.idx then false else :; @@ -250,7 +249,7 @@ test_expect_success \ 'l=`wc -c test-3.pack && - dd if=/dev/zero of=test-3.idx count=20 bs=1 conv=notrunc seek=$l && + printf "%20s" "" | dd of=test-3.idx count=20 bs=1 conv=notrunc seek=$l && if git verify-pack test-3.pack then false else :; diff --git a/t/t5302-pack-index.sh b/t/t5302-pack-index.sh index e6f70d474..77982cdea 100755 --- a/t/t5302-pack-index.sh +++ b/t/t5302-pack-index.sh @@ -208,7 +208,7 @@ test_expect_success \ obj=`git hash-object file_001` && nr=`index_obj_nr ".git/objects/pack/pack-${pack1}.idx" $obj` && chmod +w ".git/objects/pack/pack-${pack1}.idx" && - dd if=/dev/zero of=".git/objects/pack/pack-${pack1}.idx" conv=notrunc \ + printf xxxx | dd of=".git/objects/pack/pack-${pack1}.idx" conv=notrunc \ bs=1 count=4 seek=$((8 + 256 * 4 + `wc -l /dev/null || exit 1 diff --git a/t/t5303-pack-corruption-resilience.sh b/t/t5303-pack-corruption-resilience.sh index d4e30fc43..5132d4130 100755 --- a/t/t5303-pack-corruption-resilience.sh +++ b/t/t5303-pack-corruption-resilience.sh @@ -55,6 +55,8 @@ do_corrupt_object() { test_must_fail git verify-pack ${pack}.pack } +printf '\0' > zero + test_expect_success \ 'initial setup validation' \ 'create_test_files && @@ -66,7 +68,7 @@ test_expect_success \ test_expect_success \ 'create corruption in header of first object' \ - 'do_corrupt_object $blob_1 0 < /dev/zero && + 'do_corrupt_object $blob_1 0 < zero && test_must_fail git cat-file blob $blob_1 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_3 > /dev/null' @@ -125,7 +127,7 @@ test_expect_success \ 'create corruption in header of first delta' \ 'create_new_pack && git prune-packed && - do_corrupt_object $blob_2 0 < /dev/zero && + do_corrupt_object $blob_2 0 < zero && git cat-file blob $blob_1 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_3 > /dev/null' @@ -180,7 +182,7 @@ test_expect_success \ 'corruption in delta base reference of first delta (OBJ_REF_DELTA)' \ 'create_new_pack && git prune-packed && - do_corrupt_object $blob_2 2 < /dev/zero && + do_corrupt_object $blob_2 2 < zero && git cat-file blob $blob_1 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_3 > /dev/null' @@ -207,7 +209,7 @@ test_expect_success \ 'corruption #0 in delta base reference of first delta (OBJ_OFS_DELTA)' \ 'create_new_pack --delta-base-offset && git prune-packed && - do_corrupt_object $blob_2 2 < /dev/zero && + do_corrupt_object $blob_2 2 < zero && git cat-file blob $blob_1 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_3 > /dev/null' @@ -259,7 +261,7 @@ test_expect_success \ test_expect_success \ '... and a redundant pack allows for full recovery too' \ - 'do_corrupt_object $blob_2 2 < /dev/zero && + 'do_corrupt_object $blob_2 2 < zero && git cat-file blob $blob_1 > /dev/null && test_must_fail git cat-file blob $blob_2 > /dev/null && test_must_fail git cat-file blob $blob_3 > /dev/null && -- 2.30.2